Nafi reported: A muadhdhin of Umar, named Masruh, called the Adhan for the morning prayer before the break of dawn; Umar commanded him (to repeat). The narrator reported the tradition in a similar way. Abu Dawud said: This tradition has been transmitted by al-Darawardi from Ubaid Allah on the authority of Ibn Umar, saying: there was a muadhdhin of Umar, named Masud. He then narrated the rest of the tradition. This version is more correct than one.